package com.ybg.component.email.domain;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeUtility;

public class EmailMessage {
	
	private MimeMessage		mimeMessage		= null;
	private String			saveAttachPath	= "";					// 附件下载后的存放目录
	private StringBuffer	bodytext		= new StringBuffer();	// 存放邮件内容
	private String			dateformat		= "yy-MM-dd HH:mm";	// 默认的日前显示格式
	
	public EmailMessage(MimeMessage mimeMessage) {
		this.mimeMessage = mimeMessage;
	}
	
	public void setMimeMessage(MimeMessage mimeMessage) {
		this.mimeMessage = mimeMessage;
	}
	
	/** 获得发件人的地址和姓名 */
	public String getFrom() throws Exception {
		// InternetAddress address[] = (InternetAddress[]) mimeMessage.getFrom();
		// String from = address[0].getAddress();
		// if (from == null)
		// from = "";
		// String personal = address[0].getPersonal();
		// if (personal == null)
		// personal = "";
		// String fromaddr = personal + "<" + from + ">";
		//
		//
		// return fromaddr;
		String reply = mimeMessage.getReplyTo()[0].toString();
		try {
			reply = reply.substring(reply.indexOf("<") + 1, reply.indexOf(">"));
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return reply;
	}
	
	/** 获得邮件的收件人，抄送，和密送的地址和姓名，根据所传递的参数的不同 "to"----收件人 "cc"---抄送人地址 "bcc"---密送人地址 */
	public String getMailAddress(String type) throws Exception {
		String mailaddr = "";
		String addtype = type.toUpperCase();
		InternetAddress[] address = null;
		if (addtype.equals("TO") || addtype.equals("CC") || addtype.equals("BCC")) {
			if (addtype.equals("TO")) {
				address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.TO);
			}
			else if (addtype.equals("CC")) {
				address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.CC);
			}
			else {
				address = (InternetAddress[]) mimeMessage.getRecipients(Message.RecipientType.BCC);
			}
			if (address != null) {
				for (int i = 0; i < address.length; i++) {
					String email = address[i].getAddress();
					if (email == null)
						email = "";
					else {
						email = MimeUtility.decodeText(email);
					}
					String personal = address[i].getPersonal();
					if (personal == null)
						personal = "";
					else {
						personal = MimeUtility.decodeText(personal);
					}
					String compositeto = personal + "<" + email + ">";
					mailaddr += "," + compositeto;
				}
				mailaddr = mailaddr.substring(1);
			}
		}
		else {
			throw new Exception("Error emailaddr type!");
		}
		return mailaddr;
	}
	
	/** 获得邮件主题 */
	public String getSubject() throws MessagingException {
		String subject = "";
		try {
			subject = MimeUtility.decodeText(mimeMessage.getSubject());
			if (subject == null) {
				subject = "";
			}
		} catch (Exception exce) {
			exce.printStackTrace();
		}
		return subject;
	}
	
	/** 获得邮件发送日期 */
	public String getSentDate() throws Exception {
		Date sentdate = mimeMessage.getSentDate();
		SimpleDateFormat format = new SimpleDateFormat(dateformat);
		return format.format(sentdate);
	}
	
	/** 获得邮件正文内容 */
	public String getBodyText() {
		return bodytext.toString();
	}
	
	/** 解析邮件，把得到的邮件内容保存到一个StringBuffer对象中，解析邮件 主要是根据MimeType类型的不同执行不同的操作，一步一步的解析 */
	public void getMailContent(Part part) throws Exception {
		String contenttype = part.getContentType();
		int nameindex = contenttype.indexOf("name");
		boolean conname = false;
		if (nameindex != -1)
			conname = true;
		if (part.isMimeType("text/plain") && !conname) {
			bodytext.append((String) part.getContent());
		}
		// else if (part.isMimeType("text/html") && !conname) {
		// bodytext.append((String) part.getContent());
		// }
		// 屏蔽附件
		// else if (part.isMimeType("multipart/*")) {
		// Multipart multipart = (Multipart) part.getContent();
		// int counts = multipart.getCount();
		// for (int i = 0; i < counts; i++) {
		// getMailContent(multipart.getBodyPart(i));
		// }
		// }
		// else if (part.isMimeType("message/rfc822")) {
		// getMailContent((Part) part.getContent());
		// }
		// else {
		// }
	}
	
	/** 判断此邮件是否需要回执，如果需要回执返回"true",否则返回"false" */
	public boolean getReplySign() throws MessagingException {
		boolean replysign = false;
		String needreply[] = mimeMessage.getHeader("Disposition-Notification-To");
		if (needreply != null) {
			replysign = true;
		}
		return replysign;
	}
	
	/** 获得此邮件的Message-ID */
	public String getMessageId() throws MessagingException {
		return mimeMessage.getMessageID();
	}
	
	/** 【判断此邮件是否已读，如果未读返回返回false,反之返回true】 */
	public boolean isNew() throws MessagingException {
		boolean isnew = false;
		Flags flags = ((Message) mimeMessage).getFlags();
		Flags.Flag[] flag = flags.getSystemFlags();
		for (int i = 0; i < flag.length; i++) {
			if (flag[i] == Flags.Flag.SEEN) {
				isnew = true;
				break;
			}
		}
		return isnew;
	}
	
	/** 判断此邮件是否包含附件 */
	public boolean isContainAttach(Part part) throws Exception {
		boolean attachflag = false;
		// String contentType = part.getContentType();
		if (part.isMimeType("multipart/*")) {
			Multipart mp = (Multipart) part.getContent();
			for (int i = 0; i < mp.getCount(); i++) {
				BodyPart mpart = mp.getBodyPart(i);
				String disposition = mpart.getDisposition();
				if (disposition != null && (disposition.equals(Part.ATTACHMENT) || disposition.equals(Part.INLINE)))
					attachflag = true;
				else if (mpart.isMimeType("multipart/*")) {
					attachflag = isContainAttach((Part) mpart);
				}
				else {
					String contype = mpart.getContentType();
					if (contype.toLowerCase().indexOf("application") != -1)
						attachflag = true;
					if (contype.toLowerCase().indexOf("name") != -1)
						attachflag = true;
				}
			}
		}
		else if (part.isMimeType("message/rfc822")) {
			attachflag = isContainAttach((Part) part.getContent());
		}
		return attachflag;
	}
	
	/** 【保存附件】 */
	public void saveAttachMent(Part part) throws Exception {
		String fileName = "";
		if (part.isMimeType("multipart/*")) {
			Multipart mp = (Multipart) part.getContent();
			for (int i = 0; i < mp.getCount(); i++) {
				BodyPart mpart = mp.getBodyPart(i);
				String disposition = mpart.getDisposition();
				if (disposition != null && (disposition.equals(Part.ATTACHMENT) || disposition.equals(Part.INLINE))) {
					fileName = mpart.getFileName();
					if (fileName.toLowerCase().indexOf("gb2312") != -1) {
						fileName = MimeUtility.decodeText(fileName);
					}
					saveFile(fileName, mpart.getInputStream());
				}
				else if (mpart.isMimeType("multipart/*")) {
					saveAttachMent(mpart);
				}
				else {
					fileName = mpart.getFileName();
					if (fileName != null && fileName.toLowerCase().indexOf("GB2312") != -1) {
						fileName = MimeUtility.decodeText(fileName);
						saveFile(fileName, mpart.getInputStream());
					}
				}
			}
		}
		else if (part.isMimeType("message/rfc822")) {
			saveAttachMent((Part) part.getContent());
		}
	}
	
	/** 【设置附件存放路径】 */
	public void setAttachPath(String attachpath) {
		this.saveAttachPath = attachpath;
	}
	
	/** 【设置日期显示格式】 */
	public void setDateFormat(String format) throws Exception {
		this.dateformat = format;
	}
	
	/** 【获得附件存放路径】 */
	public String getAttachPath() {
		return saveAttachPath;
	}
	
	/** 【真正的保存附件到指定目录里】 */
	private void saveFile(String fileName, InputStream in) throws Exception {
		String osName = System.getProperty("os.name");
		String storedir = getAttachPath();
		String separator = "";
		if (osName == null)
			osName = "";
		if (osName.toLowerCase().indexOf("win") != -1) {
			separator = "\\";
			if (storedir == null || storedir.equals(""))
				storedir = "c:\\tmp";
		}
		else {
			separator = "/";
			storedir = "/tmp";
		}
		File storefile = new File(storedir + separator + fileName);
		// for(int i=0;storefile.exists();i++){
		// storefile = new File(storedir+separator+fileName+i);
		// }
		BufferedOutputStream bos = null;
		BufferedInputStream bis = null;
		try {
			bos = new BufferedOutputStream(new FileOutputStream(storefile));
			bis = new BufferedInputStream(in);
			int c;
			while ((c = bis.read()) != -1) {
				bos.write(c);
				bos.flush();
			}
		} catch (Exception exception) {
			exception.printStackTrace();
			throw new Exception("文件保存失败!");
		} finally {
			bos.close();
			bis.close();
		}
	}
}
